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Specific detection of echoviruses 22 and 23 in cell culture supernatants by RT-PCR

✍ Scribed by Oberste, M. Steven; Maher, Kaija; Pallansch, Mark A.

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
301 KB
Volume
58
Category
Article
ISSN
0146-6615

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✦ Synopsis

Reverse transcription-polymerase chain reaction (RT-PCR) methods are available for the rapid detection of enteroviruses in clinical specimens or virus isolates. Pan-enterovirus PCR primers, however, fail to amplify echovirus (E) type 22 or 23 because of their extreme sequence divergence from the other enteroviruses. We have developed an RT-PCR method to detect specifically E22 and E23 RNA directly in tissue culture supernatants without a viral RNA purification step. The E22/E23 primers successfully amplified 20 of 20 clinical isolates of E22 and 4 of 4 E23 isolates representing viruses isolated in 15 states over a 19-year period, as well as E22 and E23 prototype strains isolated in the 1950s. The primers did not amplify any of the other 64 enterovirus prototype strains.

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